The Tag Groups Premium plugin is not available in the built-in plugin search of your WordPress blog. That means you have to manually upload the ZIP file that you have received. Fortunately, the process is very easy and you just need to click a few buttons.
Please make sure that you first unzip the file that you received from Codester. Inside you will find a 2nd ZIP-file, which is the actual plugin file.
You need to be logged to your WordPress site as administrator. In the menu go to Plugins and Add New.
On top of the page, click on Upload Plugin. Press the button Browse… and select the tag-groups-premium.zip file. Then you click Install Now.
Activate the plugin.
You will now find a new menu in the Settings, named Tag Groups Premium.
If you previously used the free Tag Groups plugin, it will be automatically deactivated. You can safely remove it, but please make sure in the Settings under the Reset tab that no data will be deleted. The default settings keep your data.
We recommend that you now continue with the First Steps.
Instead of uploading the ZIP file, you can also uncompress it and upload the folder to your blog’s plugins folder. Afterwards you may have to fix file and folder permissions (particularly for files that must be publicly accessible).